The safest way to move PST data depends on your destination and the type of data you need to transfer. Microsoft’s native import options are worth considering for a direct PST-to-Microsoft 365 migration, especially when you need to preserve mailbox data. If you want to move PST emails to another email account that supports IMAP, you could also consider an "SysTools IMAP Import Tool". It can be useful when you need to import PST data into an IMAP-enabled account, but check the tool’s supported providers and migration requirements before starting. Whichever method you choose, make a backup of your original PST file first and verify the imported emails and attachments after the migration.